1// Copyright 2014 the V8 project authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// Flags: --harmony-strings
6
7// Tests taken from:
8// https://github.com/mathiasbynens/String.fromCodePoint
9
10assertEquals(String.fromCodePoint.length, 1);
11assertEquals(String.propertyIsEnumerable("fromCodePoint"), false);
12
13assertEquals(String.fromCodePoint(""), "\0");
14assertEquals(String.fromCodePoint(), "");
15assertEquals(String.fromCodePoint(-0), "\0");
16assertEquals(String.fromCodePoint(0), "\0");
17assertEquals(String.fromCodePoint(0x1D306), "\uD834\uDF06");
18assertEquals(
19    String.fromCodePoint(0x1D306, 0x61, 0x1D307),
20    "\uD834\uDF06a\uD834\uDF07");
21assertEquals(String.fromCodePoint(0x61, 0x62, 0x1D307), "ab\uD834\uDF07");
22assertEquals(String.fromCodePoint(false), "\0");
23assertEquals(String.fromCodePoint(null), "\0");
24
25assertThrows(function() { String.fromCodePoint("_"); }, RangeError);
26assertThrows(function() { String.fromCodePoint("+Infinity"); }, RangeError);
27assertThrows(function() { String.fromCodePoint("-Infinity"); }, RangeError);
28assertThrows(function() { String.fromCodePoint(-1); }, RangeError);
29assertThrows(function() { String.fromCodePoint(0x10FFFF + 1); }, RangeError);
30assertThrows(function() { String.fromCodePoint(3.14); }, RangeError);
31assertThrows(function() { String.fromCodePoint(3e-2); }, RangeError);
32assertThrows(function() { String.fromCodePoint(-Infinity); }, RangeError);
33assertThrows(function() { String.fromCodePoint(+Infinity); }, RangeError);
34assertThrows(function() { String.fromCodePoint(NaN); }, RangeError);
35assertThrows(function() { String.fromCodePoint(undefined); }, RangeError);
36assertThrows(function() { String.fromCodePoint({}); }, RangeError);
37assertThrows(function() { String.fromCodePoint(/./); }, RangeError);
38assertThrows(function() { String.fromCodePoint({
39  valueOf: function() { throw Error(); } });
40}, Error);
41assertThrows(function() { String.fromCodePoint({
42  valueOf: function() { throw Error(); } });
43}, Error);
44var tmp = 0x60;
45assertEquals(String.fromCodePoint({
46  valueOf: function() { ++tmp; return tmp; }
47}), "a");
48assertEquals(tmp, 0x61);
49
50var counter = Math.pow(2, 15) * 3 / 2;
51var result = [];
52while (--counter >= 0) {
53  result.push(0); // one code unit per symbol
54}
55String.fromCodePoint.apply(null, result); // must not throw
56
57var counter = Math.pow(2, 15) * 3 / 2;
58var result = [];
59while (--counter >= 0) {
60  result.push(0xFFFF + 1); // two code units per symbol
61}
62String.fromCodePoint.apply(null, result); // must not throw
63